Wheel



l. l. zlPERsTr-:IN

WHEEL Original Filed Sept. 22. 1921 2 Sheets-Sheet 1 z 6. 2 9 1... 6 n m. A

WHEEL Original Filed Sept. 22. 1921 2 Sheets-Sheet 2 y 20 :costly resilient tires.`

Patented vApr. 6, 1926.

PATENT OFFICE...

" ISRAEL I. zrrnnsrnrn, or' CHICAGO, jrnnrNors, AssIGNon enorm-HALF TofHAnnY s.

HANDLERAND TEN 'PER cnNr-'ro laromas M. NEWMAN.

Applicationfled ,Septemberg22,f1921, Serial' ,-lt'o. 502,449. Renewed November l5, 1924;

To all 'whom t ma-y/co/ncem: Y f f Be it .known thatl, 'ISRAEL I ZrPnRsu'Eim a citizen Vof Poland, lresiding at Chicago, county of Cook, .and `State of lllinois,have 5 invented .anew and useful .Improvement in Wheels, of which the following is .a s'peci- 1 fthroug'h 'the wheel v .and. its yielding'and- `shock eabsorbing structure, showing the same 60 cation. A

This invention relates -to that class-of vehicle'and `other wheel-s, commonly known asl resilient Wheels, Aand gpertains'more particula-rly to spring wheels, the pnimary aim of this invention being, by lmeans of -ainovel vand improved .resilient `.structural organizay.shocks incident toftravel oyeraa-'oadwa-y,and

:thereby prolong/thewlie-fof the Wheel lobviate Ythe `:use of 'pneumatic and `other Another, and no less important aim of .this invention, is to provide fa wheel .of 'fthe Vclass described and? embodying the features here presented which :is'capahlezof ready installation on any of fthe modern stylesof kmotor vehicles, and which .maybe manufactured `at .low :cost :and fquickly land easily dise assembled for repairs for replacement off-fthe parts damaged inservice. jg

Among `the more A.prominent features of ythe invention, :as presented in the preferred embodiment to ybe described lin detail'l-ater,

are the mounting of. the rim and the ele-Y similar instrumentalities pairs fte the hub,

yet individually to the rim; the arrangement lwhereby the resilient `structure :is completely housed and l,thi-1s hid-den .from view and .protected against dust and other "foreign matter, Vlinterfering with the :oper-ation; and the 1two setsof shock and distortion absorbing springs, whereby circumferential as well las radial ldisplacement of the. `parts is eiiiciently and readily accommodated.

With Iother numerous vobjects and advantages in view the linvention :takes its -preterred embodiment `in the structure .hereinatteidescribed and claimed, land illustrated in the accompanying .drav vings, in which: Figure l is a fragmentary 'side elevation tion, to .increase the.resi'liency .and lflexibility Referring more lparticularly to ings, 5 isftfhe hub ofthe wheel, :andjmay be, 70

shown, arsingle Toasting, or if desired. -madejin suitable :sect-ionsv for application to .the axle; not show-n. The rim 6 ma be a VV,continuous rigid orlexible ring,in t is in- `'stance preferablyrigid, and vthis :rim is conv75 l.nectec'i with thjef hub by the yielding 'or of a wheel'embodying the improvements of 1 f vthis invention, parts being shown in section.

g l Figure 21s an enlargedy vertical .sectional 65' view taken on lin-e 2-2 4of Figure 1, looking in the `direction indicated bythe arrows.

Figure 3 is a vertical i sectional view generally distorted as in service.

tion indicated by-the arrows.

Y Figure .6 is .a iragmental .sectional view taker-len linei-ofFigurel. I the-draw- ,.-resilient mechanical lorganization to vbe Lpresently.descrihedgpso that the hub is in a vmoreforfless 1f floating mounting', -in other 1' words, free to move yradially and circum- 80 ierentially.relatively the'rim within limits,

whilethe. Wheel kis rotatingin traveling a roadway. f

y 'Thefyielding or 'resilient shock absorbing mechanism and connecting-me'ans' for the 85 `.hub and ,rim comprises ygenerallyy a circum- *erential -seriesjof yieldable and yieldi-ngly tmounted radialfunits disposed incomplemental pairs A -Ag- .the respectiveunit pairs and the units .of each pair. ybeing identical, 90 which necessitates fa ldescription of -but one of these pairs. z 'Reierring now ,to one'rpair of theunits, namely, that shown near the lower portions of Figs. l and '3,'two cylinders 7 and8 are '95 provided 'with outer closed end walls 9 `and 10.carr ying each a lug 11 and l2, respectively, kthese lugs 'being perforated and in pivotal engagement Vwithspacedears 13 and 14 `termed integrally upon cleatsl and 16, 100 respectively, which vlatter areV either VAspot vwelded or yotherwise iixedly secured -:to v,the

.inner peripheral surface of ftherifm. Thesev lcleats might be cast lwith the rim where they rods 22 and 23 extend and are adapted to reciprocate, the end walls being secured against displacement by set screws, one of which is shown at 24 1n Fig. 5. Each of the spokes, adjacent the end thereof disposed in 'its receptive cylinder, is provided with the pistons 25 and 26, which are adapted to reciprocate with their respective spokes snugly in each cylinder. The ends of the spokes which project beyond the pistons may act as limit stops by engagement with the end walls 9 and 10 of the cylinders. Motion resistent and shock absorbing means are disposed on either side of the pistons and preferably include relatively heavy helical springs 27 and 28, and similarly arranged recoil absorbing helical springs 29 and 30, relatively lighter than the springs 27 and 28. The cylinders and pistons and their Vassociated yieldable elements serve to absorb the heavier shocks-encountered in service.

The inner ,en-ds of the spokes-or rods 2 2 and 23 lie within a circumferential chamber 31 formed by a radial peripheral flange 32 cast with the hub, and provided with an axial circumferential wall 33, and an annular plate 34, secured to the free margin of the wall 33 by means of machine screws 35. The wall 33 is provided with circumferentially elongated openings 36-36 for the accommodation of the spokes, so as to permit slight circumferential movement of the spokes relative the'hub.

The aforementioned inner ends of the spokes are connectedv to complete the pairs referred to, and to this end are reduced at 37 and 38 for reception in complementally arranged recesses 39 and 40 provided in the extremities of the links 41 and 42 and pivotally connected to thelinks by pins 43, said links being pivoted for rocking movement on transverse rods 44--44, secured in the flange 32 and lying in suitable counter bores in the removable plate 34. The inner faces of these links are provided with circular recesses 45 in substantial axial alinement with lthe spokes 22 and 23, and radially disposed relative the axis of the hub. Complementally arranged similar recesses 46 are circumferentially disposed in the annular enlarged portion 47 of the hub 5, suitable helical springs 48--48 being disposed between the ends of said links and the enlarged portion of the hub, the ends of the springs seating in said recesses.

The cylinders 7 and 8 and, in fact, the complete series of cylinders in the wheel are yieldingly interconnected by means of helical springs 49-49 and 50-50, these springs being arranged in crossed pairs between each cylinder and connected to complemental ears 51-51 on the respective cylinders, and thus the relative movement of the cylinders about their respective pivots is had against the tension of these springs.

In order to afford a casing for the yielding or shock absorbing structure of the wheel and to give an appearance of a so-called disk wheel, l provide. au inner disk or plate 53 having an axial opening 54 of sufficient siae to 'accommodate relative movement of the hub and said disk, as well as to accommodate the brake drum 55 secured at 56 to the. flange 32, thedisk 53 having a circular depression 57 to further accommodate the brake drum. An outer disk 58 is provided, having an axial concavo-convex portion 59 for accommodating the outer hub sleeve 60, the disks 53 and 58 being firmly,

yet detachably connected by inner and outer :i

circumferential series of bolts 61 and 62, the peripheries of the. disks being extended sufficiently beyond the rim 6 and flared outwardly as seen in Figure 2 to serve in reinders 7 and 8 fit snugly betweenthe disks v53 and 58, and consequently the cylinders are provided with longitudinal flattened surfaces 64--64 which lie in'contact with the adjacent plate.

In the general operation of thel wheel 'in service, the weight of the vehicle will cause taining a solid rubber or other tire 63. As :u will be observed from Figs. 4 and 5, the cvla slight depression of the axle and hub Sudden and violent shocks produced-by the wheel striking projections or deep depressions in the roadway will be effectively taken care of by the springs 27, 28, 29 and 30, and the effects of such shocks upon the smaller springs 48 will only be effective in so far as the relative movement of the shock absorbing units of each pair is concerned. However, minor vibrations, smaller shocks and the like, as well as the relative movement of the units of each pair of shock absorbers during rotation of the wheel will be readily absorbed by the smaller springs 48.

Where the wheel serves as a driving or traction element, the transverse rods 44, acting through links 41 and 42 of each pair of shock absorbers, and the respectiveV cushvdevices about the circumference of the wheel.

ioned radial spokes and` springs associated` therewith, deliver the necessary motion. Obviously, there Will be some circumferential distortion of the resilient structurel of the wheel under these conditions, and here again the springs Lit- 48 come into play, together with the springs 49 and 50. rIhis distortion of the shock absorbing structure Will undei ordinary conditions be amply satisfied by the yielding elements, but Where either sudden acceleration or deceleration obtains, the distortion ot the spokes is limited by their engagement with the ends of the openings 36,

Flexibility of the rim 6 Vwill not materially.

vary the general operation 'of the Wheel.

rIlie right to make minor changes iny struc-VV .members interconnected` in pairs in the saine circumferential plane,'eaeh pair having common pivotal connection to the hubV and individual connection With the iiin` said hub connection including rocking links.

In testimony whereof, I. aiX iny lsignavturerat 36 W. Randolph St.,rChieago,Illi-l ISRAEL i, ZIPERSTEIN. y 

